Motor and method of manufacturing stator used therefor
a technology of motor and stator, which is applied in the direction of windings, dynamo-electric components, embedding prefabricated windings, etc., can solve the problems of difficult automation of winding work, complicated winding work, and complicated winding work, etc., and achieve high efficiency
Active Publication Date: 2009-02-26
PANASONIC CORP
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- Abstract
- Description
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- Application Information
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Benefits of technology
[0011]Due to the above constitution, it is possible to obtain a highly efficient motor, the output of which is high, in which a space factor of the slot of the winding is high and a cogging torque is low.
[0013]By combining the stator manufactured by this method with 10-pole-magnetized rotor, it is possible to obtain a highly efficient motor, the output of which is high, in which a space factor of the slot of the winding is high and a cogging torque is low.
Problems solved by technology
As described above, the winding and the processing of connection become complicated.
Accordingly, the winding work becomes very complicated and it is difficult to automatize the winding work.
Therefore, a conventional stator manufacturing apparatus can not be used.
As a result, the manufacturing cost is raised.
However, the following problems are caused in the winding work to obtain a high output.
Accordingly, it is difficult to conduct concentrated wiring while the winding direction is being changed.
As a result, a space factor of the slot of the wiring is lowered and the efficiency is deteriorated.
However, the wire connection work becomes complicated.
Method used
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Embodiment Construction
[0032]Referring to the drawings, an embodiment of the present invention will be explained below. FIG. 1 is a schematic illustration of an essential part of a motor in an embodiment of the present invention, FIG. 2 is a wire connection diagram of 3-phase windings in a stator of a motor shown in FIG. 1, FIG. 3 is a pattern diagram of neutral points (fourth layer) at a multiple layer printed wiring board of the motor shown in FIG. 1, FIG. 4 is a pattern diagram of the first layer at the multiple layer printed wiring board of the motor shown in FIG. 1, FIG. 5 is a pattern diagram of the second layer at the multiple layer printed wiring board of the motor shown in FIG. 1, and FIG. 6 is a pattern diagram of the third layer at the multiple layer printed wiring board of the motor shown in FIG. 1.
[0033]In FIGS. 1 to 6, the motor of the present embodiment includes: rotor 1; stator 4; and multiple printed wiring boards 91, 92, 93 and 94. In rotor 1, 10 poles are magnetized at regular intervals...
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Abstract
A motor includes: a rotor in which 10 poles are magnetized at regular intervals; a stator having 12 core pieces and facing the rotor, all core pieces having a concentrated winding wound in the same direction and being annularly arranged; and a wiring board for making 3-phase connection of the windings. A wire connection is made through the wiring board in such a manner that electric currents of adjacent same phase windings flow in opposite directions and of electric currents of adjacent different phase windings flow in same directions.
Description
TECHNICAL FIELD[0001]The present invention relates to a motor and a method of manufacturing a stator used therefor. More particularly, the present invention relates to a motor including a 10-pole-magnetized rotor and a stator having 12 salient poles and windings wound round the salient poles. The present invention also relates to a method of manufacturing a stator used for the motor.BACKGROUND ART[0002]In order to provide industrial devices with high performance and high function, servo systems to drive the industrial devices have been improved to enhance maintenance properties, response properties, digitalization and accuracy. Furthermore, the servo systems have been downsized and wirings installed in the servo systems have been reduced.[0003]In stators incorporated into the servo motors, space factors of slots of windings have been improved by conducting concentrated winding on division cores round which it is easy to conduct winding work. By adopting rare earth magnets, the rotor...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H02K11/00H02K15/06
CPCH02K3/18Y10T29/49009H02K2203/03H02K3/522
Inventor YAMANE, MITSURUTAKEUCHI, MANABU
Owner PANASONIC CORP